CAS Performance

[Scott Battaglia]

Which version of CAS are you using?  Later versions synchronize on the
specific ticket and not on any registries.

-Scott

On 11/13/06, Pete Giesin <pgiesin at hubcitymedia.com> wrote:
>
> After looking at it some more I think the log entries are not related.
> One is the login and the other is the logout that is being processed.
>
> The concern that I have is the large number of synchronized blocks
> that are being used. This seems like it will cause many bottlenecks. I
> updated the DefaultTicketCache to use JCS and removed the synchronized
> methods. This seemed to help out some, but not entirely.
>
> Thanks,
> Pete
>
> On 11/13/06, Scott Battaglia <scott.battaglia at gmail.com> wrote:
> > Pete,
> >
> > Does that happen all the time?  (and is this only with one user?).  The
> > result of an "authenticatedButNoService" call is a request to render the
> > viewGenericLoginSuccess page. Rendering a genericLoginSuccessView should
> not
> > result in a ticket being removed.  Tickets are only removed if you do a
> > renew=true with different credentials or if logout is called (unless I
> am
> > remembering wrong).
> >
> > Also, CAS itself is not very memory intensive so 4 GB of memory should
> be
> > more than sufficient.  We did find in our testing (which we did on a
> > single-CPU machine) that the majority of the CPU time was being taken up
> by
> > Apache processes (but then we had an underpowered machine).
> >
> > -Scott
> >
> >
> > On 11/13/06, Pete Giesin <pgiesin at hubcitymedia.com> wrote:
> > >
> > > More specs: dual AMD dual core cpu's with 4GB of memory.
> > >
> > > One interesting thing is the 2 second delay between these  actions:
> > >
> > > 2006-11-13 17:02:27,856 DEBUG
> > > [org.jasig.cas.web.flow.HasServiceCheckAction] - <Action
> > > 'HasServiceCheckAction' completed execution; result is
> > > 'authenticatedButNoService'>
> > > 2006-11-13 17:02:29,792 DEBUG
> > > [org.jasig.cas.CentralAuthenticationServiceImpl] -
> > <Removing ticket
> > > [TGT-369-p62ifeG755sWev2LdE1Cl9pjPmUFJKeZMzk-50] from
> > registry.>
> > >
> > > Pete
> > >
> > > On 11/13/06, Scott Battaglia <scott.battaglia at gmail.com> wrote:
> > > > Do you hav any more information on the specs?
> > > >
> > > >
> > > > On 11/13/06, Pete Giesin < pgiesin at hubcitymedia.com> wrote:
> > > > > HP blade running Redhat Linux for 64-bit.
> > > > >
> > > > > On 11/13/06, Scott Battaglia < scott.battaglia at gmail.com> wrote:
> > > > > > What type of server is it?
> > > > > >
> > > > > > -Scott
> > > > > >
> > > > > >
> > > > > > On 11/13/06, Pete Giesin < pgiesin at hubcitymedia.com > wrote:
> > > > > > >
> > > > > > > I am performing some load testing against CAS and am getting
> > terrible
> > > > > > > results. Something like 30 requests per second. I have CAS
> running
> > on
> > > > > > > a single server using Apache + Tomcat. I have a JDBC
> datasource
> > > > > > > defined for the user lookups. I also have an ehcache defined
> to
> > cache
> > > > > > > the users. I was wondering if anyone has any suggestions on
> how to
> > > > > > > tweak the configuration in order to increase the performance.
> My
> > > > > > > objective is 100 requests per second.
> > > > > > >
> > > > > > > Thanks,
> > > > > > > Pete
> > > > > > > _______________________________________________
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> > > > > > >
> > > > > >
> > > > > >
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> > > > > >
> > > > > >
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